a. Un peu de culture ! Choisis la date qui convient pour chacune des trois phrases ci-dessous et écris-la en toutes lettres. 2/4/1789 9/22/1862 11/4/2008 1. On ..., Barack Obama became the first black president of the USA. 2. George Washington became the first president of the USA on ... . 3. President Lincoln wrote the Emancipation Proclamation on ....